Palladium-containing polymers via a combination of RAFT and triazole chemistry

Lang, C., Kiefer, C., Lejeune, E., Goldmann, A.S., Breher, F., Roesky, P.W., & Barner-Kowollik, C. (2012) Palladium-containing polymers via a combination of RAFT and triazole chemistry. Polymer Chemistry, 3(9), pp. 2413-2420.

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Abstract

Polystyrene based copolymers with palladium-ligating side groups were obtained by RAFT polymerization of chloromethyl styrene and styrene, subsequent azide transformation and quantitative copper-mediated 1,3-dipolar cycloaddition of ethynyl pyridine. Variable copolymer compositions were synthesized ranging from 10% to 50% with respect to the fraction of the palladium-ligating comonomer. The successful loading of the polymers with PdCl2 employing [Pd(COD)Cl2] (COD = 1,5-cyclooctadiene) as the metal source was confirmed by nuclear magnetic resonance spectroscopy (NMR) and elemental analysis. Absolute molecular weights of the Pd-containing polymers ranging from Mw = 16 000 g mol-1 to 20 000 g mol-1 were determined by employing static light scattering (SLS). In order to fully clarify the incorporation of palladium into the polymers, a PdCl2 complex of a chelating N donor ligand featuring the characteristic heterocyclic donor functions used to incorporate PdCl2 in the polymer was synthesized and characterized by single crystal X-ray diffraction and NMR analysis. © 2012 The Royal Society of Chemistry.

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ID Code: 99315
Item Type: Journal Article
Refereed: Yes
Keywords: 1 ,3-Dipolarcycloaddition, 1 ,5-cyclooctadiene, Copolymer compositions, Metal sources, N-donor ligands, RAft polymerization, Single crystal x-ray diffraction, Static Light Scattering, Copolymers, Cycloaddition, Living polymerization, Loading, Nuclear magnetic resonance spectroscopy, Palladium, Palladium compounds, Polymethyl methacrylates, Styrene, Synthesis (chemical), X ray diffraction, Polymers
DOI: 10.1039/c2py20242e
ISSN: 1759-9954
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 22 Sep 2016 04:50
Last Modified: 17 May 2017 00:49

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